Hi Ian,
Taken today by my wife with the very same camera:
No problems with the image quality, still using it to this day.
However, Jen reported that today was the first time the screen flashed intermittently, it had white lines accross it.
Is the purple line visible purely using the preview, or when the image is downloaded, I have had a quick look online to see if other users have experienced anything, and there does seem to be a few, but only on the LCD.